Function patch_seq_list_set 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn patch_seq_list_set(stack: Stack) -> Stack

Set an element in a list by index (functional - returns new list)

Stack effect: ( Variant Int Value – Variant Bool )

Returns a new list with the value at the given index replaced, and true. If index is out of bounds, returns the original list and false.

Safety

Stack must have Value on top, Int below, and Variant (list) below that